P. D. Panagiotopoulos

The Boundary Integral Approach to Static and Dynamic Contact Problems: Equality and Inequality Methods

Quasidifferentiability and Nonsmooth Modelling in Mechanics, Engineering and Economics

Mathematical Theory of Hemivariational Inequalities and Applications

Inequality Problems in Mechanics and Applications: Convex and Nonconvex Energy Functions

Minimax Theorems and Qualitative Properties of the Solutions of Hemivariational Inequalities